Radeon R9 280X DirectCU II TOP 3GB Edition is a special edition of the high-end Radeon R9 280X. This edition comes with a custom cooling system called "DirectCU II", which reduces the card's temperature under load, significantly and comes overclocked out of the box in the central unit that was increased from 850MHz to 970MHz, while the Boost clock is now of 1070MHz. Also, the memory clock is now of 1600MHz. Benchmarks indicate a 5% performance boost over the standard edition and so this card offers the same performance a GeForce GTX 770 does.